<template>
  <view :id="attrs.id" :class="'_block _'+name+' '+attrs.class" :style="attrs.style">
    <block v-for="(n, i) in childs" v-bind:key="i">
      <!-- 图片 -->
      <!-- 占位图 -->
      <image v-if="n.name==='img'&&!n.t&&((opts[1]&&!ctrl[i])||ctrl[i]<0)" class="_img" :style="n.attrs.style"
             :src="ctrl[i]<0?opts[2]:opts[1]" mode="widthFix" />
      <!-- 显示图片 -->
      <!-- #ifdef H5 || (APP-PLUS && VUE2) -->
      <img v-if="n.name==='img'" :id="n.attrs.id" :class="'_img '+n.attrs.class"
           :style="(ctrl[i]===-1?'display:none;':'')+n.attrs.style"
           :src="n.attrs.src||(ctrl.load?n.attrs['data-src']:'')" :data-i="i" @load="imgLoad" @error="mediaError"
           @tap.stop="imgTap" @longpress="imgLongTap" />
      <!-- #endif -->
      <!-- #ifndef H5 || (APP-PLUS && VUE2) -->
      <!-- 表格中的图片，使用 rich-text 防止大小不正确 -->
      <rich-text v-if="n.name==='img'&&n.t" :style="'display:'+n.t"
                 :nodes="[{attrs:{style:n.attrs.style,src:n.attrs.src},name:'img'}]" :data-i="i" @tap.stop="imgTap" />
      <!-- #endif -->
      <!-- #ifndef H5 || APP-PLUS -->
      <image v-else-if="n.name==='img'" :id="n.attrs.id" :class="'_img '+n.attrs.class"
             :style="(ctrl[i]===-1?'display:none;':'')+'width:'+(ctrl[i]||1)+'px;height:1px;'+n.attrs.style"
             :src="n.attrs.src" :mode="!n.h?'widthFix':(!n.w?'heightFix':'')" :lazy-load="opts[0]" :webp="n.webp"
             :show-menu-by-longpress="opts[3]&&!n.attrs.ignore" :image-menu-prevent="!opts[3]||n.attrs.ignore"
             :data-i="i" @load="imgLoad" @error="mediaError" @tap.stop="imgTap" @longpress="imgLongTap" />
      <!-- #endif -->
      <!-- #ifdef APP-PLUS && VUE3 -->
      <image v-else-if="n.name==='img'" :id="n.attrs.id" :class="'_img '+n.attrs.class"
             :style="(ctrl[i]===-1?'display:none;':'')+'width:'+(ctrl[i]||1)+'px;'+n.attrs.style"
             :src="n.attrs.src||(ctrl.load?n.attrs['data-src']:'')" :mode="!n.h?'widthFix':(!n.w?'heightFix':'')"
             :data-i="i" @load="imgLoad" @error="mediaError" @tap.stop="imgTap" @longpress="imgLongTap" />
      <!-- #endif -->
      <!-- 文本 -->
      <!-- #ifdef MP-WEIXIN -->
      <text v-else-if="n.text" :user-select="opts[4]=='force'&&isiOS" decode>{{ n.text }}</text>
      <!-- #endif -->
      <!-- #ifndef MP-WEIXIN || MP-BAIDU || MP-ALIPAY || MP-TOUTIAO -->
      <text v-else-if="n.text" decode>{{ n.text }}</text>
      <!-- #endif -->
      <text v-else-if="n.name==='br'">\n</text>
      <!-- 链接 -->
      <view v-else-if="n.name==='a'" :id="n.attrs.id" :class="(n.attrs.href?'_a ':'')+n.attrs.class"
            hover-class="_hover" :style="'display:inline;'+n.attrs.style" :data-i="i" @tap.stop="linkTap">
        <node name="span" :childs="n.children" :opts="opts" style="display:inherit" />
      </view>
      <!-- 视频 -->
      <!-- #ifdef APP-PLUS -->
      <view v-else-if="n.html" :id="n.attrs.id" :class="'_video '+n.attrs.class" :style="n.attrs.style" v-html="n.html"
            @vplay.stop="play" />
      <!-- #endif -->
      <!-- #ifndef APP-PLUS -->
      <video v-else-if="n.name==='video'" :id="n.attrs.id" :class="n.attrs.class" :style="n.attrs.style"
             :autoplay="n.attrs.autoplay" :controls="n.attrs.controls" :loop="n.attrs.loop" :muted="n.attrs.muted"
             :object-fit="n.attrs['object-fit']" :poster="n.attrs.poster" :src="n.src[ctrl[i]||0]" :data-i="i"
             @play="play" @error="mediaError" />
      <!-- #endif -->
      <!-- #ifdef H5 || APP-PLUS -->
      <iframe v-else-if="n.name==='iframe'" :style="n.attrs.style" :allowfullscreen="n.attrs.allowfullscreen"
              :frameborder="n.attrs.frameborder" :src="n.attrs.src" />
      <embed v-else-if="n.name==='embed'" :style="n.attrs.style" :src="n.attrs.src" />
      <!-- #endif -->
      <!-- #ifndef MP-TOUTIAO || ((H5 || APP-PLUS) && VUE3) -->
      <!-- 音频 -->
      <audio v-else-if="n.name==='audio'" :id="n.attrs.id" :class="n.attrs.class" :style="n.attrs.style"
             :author="n.attrs.author" :controls="n.attrs.controls" :loop="n.attrs.loop" :name="n.attrs.name"
             :poster="n.attrs.poster" :src="n.src[ctrl[i]||0]" :data-i="i" @play="play" @error="mediaError" />
      <!-- #endif -->
      <view v-else-if="(n.name==='table'&&n.c)||n.name==='li'" :id="n.attrs.id" :class="'_'+n.name+' '+n.attrs.class"
            :style="n.attrs.style">
        <node v-if="n.name==='li'" :childs="n.children" :opts="opts" />
        <view v-else v-for="(tbody, x) in n.children" v-bind:key="x" :class="'_'+tbody.name+' '+tbody.attrs.class"
              :style="tbody.attrs.style">
          <node v-if="tbody.name==='td'||tbody.name==='th'" :childs="tbody.children" :opts="opts" />
          <block v-else v-for="(tr, y) in tbody.children" v-bind:key="y">
            <view v-if="tr.name==='td'||tr.name==='th'" :class="'_'+tr.name+' '+tr.attrs.class" :style="tr.attrs.style">
              <node :childs="tr.children" :opts="opts" />
            </view>
            <view v-else :class="'_'+tr.name+' '+tr.attrs.class" :style="tr.attrs.style">
              <view v-for="(td, z) in tr.children" v-bind:key="z" :class="'_'+td.name+' '+td.attrs.class"
                    :style="td.attrs.style">
                <node :childs="td.children" :opts="opts" />
              </view>
            </view>
          </block>
        </view>
      </view>

      <!-- 富文本 -->
      <!-- #ifdef H5 || ((MP-WEIXIN || MP-QQ || APP-PLUS || MP-360) && VUE2) -->
      <rich-text v-else-if="!n.c&&!handler.isInline(n.name, n.attrs.style)" :id="n.attrs.id" :style="n.f"
                 :user-select="opts[4]" :nodes="[n]" @tap.stop="codeLongTap(n)" />
      <!-- #endif -->
      <!-- #ifndef H5 || ((MP-WEIXIN || MP-QQ || APP-PLUS || MP-360) && VUE2) -->
      <rich-text v-else-if="!n.c" :id="n.attrs.id" :style="'display:inline;'+n.f" :preview="false" :selectable="opts[4]"
                 :user-select="opts[4]" :nodes="[n]" @tap.stop="codeLongTap(n)" />
      <!-- #endif -->
      <!-- 继续递归 -->
      <view v-else-if="n.c===2" :id="n.attrs.id" :class="'_block _'+n.name+' '+n.attrs.class"
            :style="n.f+';'+n.attrs.style">
        <node v-for="(n2, j) in n.children" v-bind:key="j" :style="n2.f" :name="n2.name" :attrs="n2.attrs"
              :childs="n2.children" :opts="opts" />
      </view>
      <node v-else :style="n.f" :name="n.name" :attrs="n.attrs" :childs="n.children" :opts="opts" />
    </block>
  </view>
</template>
<script module="handler" lang="wxs">
  // 行内标签列表
  var inlineTags = {
    abbr: true,
    b: true,
    big: true,
    code: true,
    del: true,
    em: true,
    i: true,
    ins: true,
    label: true,
    q: true,
    small: true,
    span: true,
    strong: true,
    sub: true,
    sup: true
  }
  /**
   * @description 判断是否为行内标签
   */
  module.exports = {
    isInline: function (tagName, style) {
      return inlineTags[tagName] || (style || '').indexOf('display:inline') !== -1
    }
  }
</script>
<script>

  import node from './node';

  export default {
    name: 'node',
    options: {
      // #ifdef MP-WEIXIN
      virtualHost: true,
      // #endif
      // #ifdef MP-TOUTIAO
      addGlobalClass: false,
      // #endif
    },
    data() {
      return {
        ctrl: {},
        // #ifdef MP-WEIXIN
        isiOS: uni.getSystemInfoSync().system.includes('iOS'),
        // #endif
      };
    },
    props: {
      name: String,
      attrs: {
        type: Object,
        default() {
          return {};
        },
      },
      childs: Array,
      opts: Array,
    },
    components: {

      // #ifndef (H5 || APP-PLUS) && VUE3
      node,
      // #endif
    },
    mounted() {
      this.$nextTick(() => {
        for (this.root = this.$parent; this.root.$options.name !== 'mp-html'; this.root = this.root.$parent) ;
      });
      // #ifdef H5 || APP-PLUS
      if (this.opts[0]) {
        let i;
        for (i = this.childs.length; i--;) {
          if (this.childs[i].name === 'img') break;
        }
        if (i !== -1) {
          this.observer = uni.createIntersectionObserver(this).relativeToViewport({
            top: 500,
            bottom: 500,
          });
          this.observer.observe('._img', res => {
            if (res.intersectionRatio) {
              this.$set(this.ctrl, 'load', 1);
              this.observer.disconnect();
            }
          });
        }
      }
      // #endif
    },
    beforeDestroy() {
      // #ifdef H5 || APP-PLUS
      if (this.observer) {
        this.observer.disconnect();
      }
      // #endif
    },
    methods: {
      codeLongTap(e) {
        if (e.attrs.class == 'hl-pre') {
          uni.setClipboardData({
            data: e.attrs['data-content'],
            showToast: false,
            success: () => {
              uni.showToast({
                title: '代码复制成功',
                duration: 1000,
              });
            },
            fail: (err) => {
              console.log('err', err);
            },
          });
        }
      },
      // codeLongTap(e){
      // 	console.log('codeLongTap',e.attrs);
      // 	if(e.attrs.class=='hl-pre'){
      // 		uni.showActionSheet({
      // 			itemList: ['复制代码'],
      // 			success: function (res) {
      // 				uni.setClipboardData({
      // 					data: e.attrs['data-content'],
      // 					showToast:false,
      // 					success: () => {
      // 						uni.showToast({
      // 							title: '代码复制成功',
      // 							duration: 1000
      // 						});
      // 					},
      // 					fail: (err) => {
      // 						console.log('err', err);
      // 					}
      // 				});
      // 			},
      // 			fail: function (res) {
      // 				console.log(res.errMsg);
      // 			}
      // 		});
      // 	}
      // },
      // #ifdef MP-WEIXIN
      toJSON() {
        return this;
      },
      // #endif
      /**
       * @description 播放视频事件
       * @param {Event} e
       */
      play(e) {
        this.root.$emit('play');
        // #ifndef APP-PLUS
        if (this.root.pauseVideo) {
          let flag = false;
          const id = e.target.id;
          for (let i = this.root._videos.length; i--;) {
            if (this.root._videos[i].id === id) {
              flag = true;
            } else {
              this.root._videos[i].pause(); // 自动暂停其他视频
            }
          }
          // 将自己加入列表
          if (!flag) {
            const ctx = uni.createVideoContext(id
              // #ifndef MP-BAIDU
              , this,
              // #endif
            );
            ctx.id = id;
            if (this.root.playbackRate) {
              ctx.playbackRate(this.root.playbackRate);
            }
            this.root._videos.push(ctx);
          }
        }
        // #endif
      },

      /**
       * @description 图片点击事件
       * @param {Event} e
       */
      imgTap(e) {
        const node = this.childs[e.currentTarget.dataset.i];
        if (node.a) {
          this.linkTap(node.a);
          return;
        }
        if (node.attrs.ignore) return;
        // #ifdef H5 || APP-PLUS
        node.attrs.src = node.attrs.src || node.attrs['data-src'];
        // #endif
        this.root.$emit('imgtap', node.attrs);
        // 自动预览图片
        if (this.root.previewImg) {
          uni.previewImage({
            // #ifdef MP-WEIXIN
            showmenu: this.root.showImgMenu,
            // #endif
            // #ifdef MP-ALIPAY
            enablesavephoto: this.root.showImgMenu,
            enableShowPhotoDownload: this.root.showImgMenu,
            // #endif
            current: parseInt(node.attrs.i),
            urls: this.root.imgList,
          });
        }
      },

      /**
       * @description 图片长按
       */
      imgLongTap(e) {
        // #ifdef APP-PLUS
        const attrs = this.childs[e.currentTarget.dataset.i].attrs;
        if (this.opts[3] && !attrs.ignore) {
          uni.showActionSheet({
            itemList: ['保存图片'],
            success: () => {
              const save = path => {
                uni.saveImageToPhotosAlbum({
                  filePath: path,
                  success() {
                    uni.showToast({
                      title: '保存成功',
                    });
                  },
                });
              };
              if (this.root.imgList[attrs.i].startsWith('http')) {
                uni.downloadFile({
                  url: this.root.imgList[attrs.i],
                  success: res => save(res.tempFilePath),
                });
              } else {
                save(this.root.imgList[attrs.i]);
              }
            },
          });
        }
        // #endif
      },

      /**
       * @description 图片加载完成事件
       * @param {Event} e
       */
      imgLoad(e) {
        const i = e.currentTarget.dataset.i;
        /* #ifndef H5 || (APP-PLUS && VUE2) */
        if (!this.childs[i].w) {
          // 设置原宽度
          this.$set(this.ctrl, i, e.detail.width);
        } else /* #endif */ if ((this.opts[1] && !this.ctrl[i]) || this.ctrl[i] === -1) {
          // 加载完毕，取消加载中占位图
          this.$set(this.ctrl, i, 1);
        }
        this.checkReady();
      },

      /**
       * @description 检查是否所有图片加载完毕
       */
      checkReady() {
        if (this.root && !this.root.lazyLoad) {
          this.root._unloadimgs -= 1;
          if (!this.root._unloadimgs) {
            setTimeout(() => {
              this.root.getRect().then(rect => {
                this.root.$emit('ready', rect);
              }).catch(() => {
                this.root.$emit('ready', {});
              });
            }, 350);
          }
        }
      },

      /**
       * @description 链接点击事件
       * @param {Event} e
       */
      linkTap(e) {
        const node = e.currentTarget ? this.childs[e.currentTarget.dataset.i] : {};
        const attrs = node.attrs || e;
        const href = attrs.href;
        this.root.$emit('linktap', Object.assign({
          innerText: this.root.getText(node.children || []), // 链接内的文本内容
        }, attrs));
        if (href) {
          if (href[0] === '#') {
            // 跳转锚点
            this.root.navigateTo(href.substring(1)).catch(() => {
            });
          } else if (href.split('?')[0].includes('://')) {
            // 复制外部链接
            if (this.root.copyLink) {
              // #ifdef H5
              window.open(href);
              // #endif
              // #ifdef MP
              uni.setClipboardData({
                data: href,
                success: () =>
                  uni.showToast({
                    title: '链接已复制',
                  }),
              });
              // #endif
              // #ifdef APP-PLUS
              plus.runtime.openWeb(href);
              // #endif
            }
          } else {
            // 跳转页面
            uni.navigateTo({
              url: href,
              fail() {
                uni.switchTab({
                  url: href,
                  fail() {
                  },
                });
              },
            });
          }
        }
      },

      /**
       * @description 错误事件
       * @param {Event} e
       */
      mediaError(e) {
        const i = e.currentTarget.dataset.i;
        const node = this.childs[i];
        // 加载其他源
        if (node.name === 'video' || node.name === 'audio') {
          let index = (this.ctrl[i] || 0) + 1;
          if (index > node.src.length) {
            index = 0;
          }
          if (index < node.src.length) {
            this.$set(this.ctrl, i, index);
            return;
          }
        } else if (node.name === 'img') {
          // #ifdef H5 && VUE3
          if (this.opts[0] && !this.ctrl.load) return;
          // #endif
          // 显示错误占位图
          if (this.opts[2]) {
            this.$set(this.ctrl, i, -1);
          }
          this.checkReady();
        }
        if (this.root) {
          this.root.$emit('error', {
            source: node.name,
            attrs: node.attrs,
            // #ifndef H5 && VUE3
            errMsg: e.detail.errMsg,
            // #endif
          });
        }
      },
    },
  };
</script>
<style>/deep/ .hl-code, /deep/ .hl-pre {
  color: #ccc;
  background: 0 0;
  font-family: Consolas, Monaco, 'Andale Mono', 'Ubuntu Mono', monospace;
  font-size: 1em;
  text-align: left;
  white-space: pre;
  word-spacing: normal;
  word-break: normal;
  word-wrap: normal;
  line-height: 1.5;
  -moz-tab-size: 4;
  -o-tab-size: 4;
  tab-size: 4;
  -webkit-hyphens: none;
  -moz-hyphens: none;
  -ms-hyphens: none;
  hyphens: none
}

/deep/ .hl-pre {
  padding: 1em;
  margin: .5em 0;
  overflow: auto
}

/deep/ .hl-pre {
  background: #2d2d2d
}

/deep/ .hl-block-comment, /deep/ .hl-cdata, /deep/ .hl-comment, /deep/ .hl-doctype, /deep/ .hl-prolog {
  color: #999
}

/deep/ .hl-punctuation {
  color: #ccc
}

/deep/ .hl-attr-name, /deep/ .hl-deleted, /deep/ .hl-namespace, /deep/ .hl-tag {
  color: #e2777a
}

/deep/ .hl-function-name {
  color: #6196cc
}

/deep/ .hl-boolean, /deep/ .hl-function, /deep/ .hl-number {
  color: #f08d49
}

/deep/ .hl-class-name, /deep/ .hl-constant, /deep/ .hl-property, /deep/ .hl-symbol {
  color: #f8c555
}

/deep/ .hl-atrule, /deep/ .hl-builtin, /deep/ .hl-important, /deep/ .hl-keyword, /deep/ .hl-selector {
  color: #cc99cd
}

/deep/ .hl-attr-value, /deep/ .hl-char, /deep/ .hl-regex, /deep/ .hl-string, /deep/ .hl-variable {
  color: #7ec699
}

/deep/ .hl-entity, /deep/ .hl-operator, /deep/ .hl-url {
  color: #67cdcc
}

/deep/ .hl-bold, /deep/ .hl-important {
  font-weight: 700
}

/deep/ .hl-italic {
  font-style: italic
}

/deep/ .hl-entity {
  cursor: help
}

/deep/ .hl-inserted {
  color: green
}

/deep/ .md-p {
  margin-block-start: 1em;
  margin-block-end: 1em;
}

/deep/ .hl-copy {
  color: #cccccc;
}

/deep/ .md-table,
/deep/ .md-blockquote {
  margin-bottom: 16px;
}

/deep/ .md-table {
  box-sizing: border-box;
  width: 100%;
  overflow: auto;
  border-spacing: 0;
  border-collapse: collapse;
}

/deep/ .md-tr {
  background-color: #fff;
  border-top: 1px solid #c6cbd1;
}

.md-table .md-tr:nth-child(2n) {
  background-color: #f6f8fa;
}

/deep/ .md-th,
/deep/ .md-td {
  padding: 6px 13px !important;
  border: 1px solid #dfe2e5;
}

/deep/ .md-th {
  font-weight: 600;
}

/deep/ .md-blockquote {
  padding: 0 1em;
  color: #6a737d;
  border-left: 0.25em solid #dfe2e5;
}

/deep/ .md-code {
  padding: 0.2em 0.4em;
  font-family: SFMono-Regular, Consolas, Liberation Mono, Menlo, monospace;
  font-size: 85%;
  background-color: rgba(27, 31, 35, 0.05);
  border-radius: 3px;
}

/deep/ .md-pre .md-code {
  padding: 0;
  font-size: 100%;
  background: transparent;
  border: 0;
}

/* a 标签默认效果 */
._a {
  padding: 1.5px 0 1.5px 0;
  color: #366092;
  word-break: break-all;
}

/* a 标签点击态效果 */
._hover {
  text-decoration: underline;
  opacity: 0.7;
}

/* #ifdef MP-WEIXIN */
/* 图片默认效果 */
._img {
  max-width: 750rpx !important;
  -webkit-touch-callout: none;
}
/* #endif */
/* #ifndef MP-WEIXIN */
/* 图片默认效果 */
._img {
  max-width: 100%;
  -webkit-touch-callout: none;
}
/* #endif */

/* 内部样式 */

._block {
  display: block;
}

._b,
._strong {
  font-weight: bold;
}

._code {
  font-family: monospace;
}

._del {
  text-decoration: line-through;
}

._em,
._i {
  font-style: italic;
}

._h1 {
  font-size: 2em;
}

._h2 {
  font-size: 1.5em;
}

._h3 {
  font-size: 1.17em;
}

._h5 {
  font-size: 0.83em;
}

._h6 {
  font-size: 0.67em;
}

._h1,
._h2,
._h3,
._h4,
._h5,
._h6 {
  display: block;
  font-weight: bold;
}

._image {
  height: 1px;
}

._ins {
  text-decoration: underline;
}

._li {
  display: list-item;
}

._ol {
  list-style-type: decimal;
}

._ol,
._ul {
  display: block;
  padding-left: 40px;
  margin: 1em 0;
}

._q::before {
  content: '"';
}

._q::after {
  content: '"';
}

._sub {
  font-size: smaller;
  vertical-align: sub;
}

._sup {
  font-size: smaller;
  vertical-align: super;
}

._thead,
._tbody,
._tfoot {
  display: table-row-group;
}

._tr {
  display: table-row;
}

._td,
._th {
  display: table-cell;
  vertical-align: middle;
}

._th {
  font-weight: bold;
  text-align: center;
}

._ul {
  list-style-type: disc;
}

._ul ._ul {
  margin: 0;
  list-style-type: circle;
}

._ul ._ul ._ul {
  list-style-type: square;
}

._abbr,
._b,
._code,
._del,
._em,
._i,
._ins,
._label,
._q,
._span,
._strong,
._sub,
._sup {
  display: inline;
}

/* #ifdef APP-PLUS */
._video {
  width: 300px;
  height: 225px;
}

/* #endif */
</style>